Door-spring.



PATENTED AUG. 30, 1904.

A. U. AUSTIN. DOOR SPRING.

APPLICATION FILED NOV. 21, 1903.

N0 MODEL.

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UNITED STATES Patented August 30, 1904.

PATENT @EEICE.

DOOR-SPRING.

SPECIFICATION forming part of Letters Patent No. 768,718, dated August30, 1904.

Application filed November 21,1903. Serial No. 182,151. (No model.)

To rtZZ whom, it ntrty concern:

Be it known that I, ANDREW O. AUsTIN, a

citizen of the United States, residing at Hud-.

son, in the county of Lincoln and State of South Dakota, have invented anew and useful Improvement in Door-Springs, of which the following is aspecification.

This invention relates to door-springs; and the object of the inventionis to so construct and arrange the spring that it will be prevented fromrubbing against the edge of the door, and, further, to gain a purchaseby means of which the door can be closed by the spring even when thedoor is swung open so as to be parallel with the wall.

My invention consists of the novel features of construction andcombination of parts hereinafter described, particularly pointed out inthe claims, and shown in the accompanying drawings, in which Figure 1 isa perspective view showing the practical application of my device. Fig.2is a plan view of my device, the door and doorcasing beingshown insection. Fig. 3 is a similar view, the door being shown in an openposition. Fig. 4: is a detail perspective view of my device.

In the drawings, A represents a door hinged in the usual manner. To thecasing of the door on the side opposite the hinges is secured one end ofa coil-spring B, the other end being secured to the door, the saidspring being in practice about sixteen inches long. Secured on the doorin the horizontal plane of the spring B is a plate (3, which plate isthe fixed leaf of a hinge. The free leaf 0 is bifurcated or slotted, asshown at C the ends of the slotted portion being bent or curved over toform bearings for apintle, on which is journaled a roller 0 theperiphery of the roller being grooved. This free leaf C normally eX-tends towardthe end of the spring B, which is secured to thedoor-casing, the roller being adjacent to if not in actual contact withthe spring. As the door is opened and the spring stretched the leaf Cunder tension of the spring bearing on the roller will be thrown into aposition parallel to the door and projecting horizontally beyond thesame, as clearly shown in Fig.3. This will hold the spring out from theedge of the door and not only prevent it from bearing against the edge,

thus injuring the spring, but will also afford a leverage, so that nomatter what position the door is placed in the spring will be able toreturn'it to its normal or closed position.

Having thus fully described my invention, what I claim, and desire tosecure by Letters Patent, is-

l. A device of the kind described comprising a coil-spring adapted to besecured, one end to the door and the other to the door-casing, to hold adoor closed, a hinged plate carried by the door, and a roller carried bythe plate and adapted-to engage the spring.

2. The combination with a door having a coil-spring, one end of saidspring being secured to the door and the opposite end to the door-jamb,of aplate hinged to the door in the horizontal plane of the spring,'anda roller carried by said plate and adapted to engage the spring and holdsame away from the edge of the'door when the latter is open.

ANDREW O. AUSTIN.

WVitnesses:

O. C. HAAs, O. F. JOHNSON.

